Method and circuit for reading code words having variable length

Details Method and circuit for reading code words having variable length Method and circuit for reading code words having variable length

1995-11-21

1998-06-16

Couso, Jose L.

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G06K 936

Patent

active

057684286

ABSTRACT:
A circuit and method for reading code words having variable lengths out of memory used for data words having a fixed length. In the circuit and method, two shifting operations are separated from each other in dimension and time. The first shifting operation is performed using a combination of multiplexers and buffers that does not include a barrel shifter. The circuit and method are especially suitable for use in the decompression of data when transmitting multimedia information, such as information based on H.261, JPEG and MPEG standards.

REFERENCES:
patent: 5245338 (1993-09-01), Sun
patent: 5253053 (1993-10-01), Chu
patent: 5295203 (1994-03-01), Krause et al.
patent: 5479527 (1995-12-01), Chen
patent: 5566254 (1996-10-01), Murata et al.
patent: 5598483 (1997-01-01), Purcell et al.

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